The existence of∼ 109M⊙ supermassive black holes (SMBHs) within the first billion years
of the Universe has stimulated numerous ideas for the prompt formation and rapid growth of …

We review our current understanding of how the first galaxies formed at the end of the
cosmic dark ages a few 100 million years after the Big Bang. Modern large telescopes …

Starlight from galaxies plays a pivotal role throughout the process of cosmic reionization. We
present the statistics of dwarf galaxy properties at z> 7 in haloes with masses up to 109 M⊙ …

We perform cosmological hydrodynamics simulations with non-equilibrium primordial
chemistry to obtain 59 minihalos that host first stars. The obtained minihalos are used as the …

The fraction of hydrogen ionizing photons escaping from galaxies into the intergalactic
medium is a critical ingredient in the theory of reionization. We use two zoomed-in, high …

By definition, Population III stars are metal-free, and their protostellar collapse is driven by
molecular hydrogen cooling in the gas phase, leading to large characteristic masses …

Cosmic reionization is thought to be primarily fueled by the first generations of galaxies. We
examine their stellar and gaseous properties, focusing on the star formation rates and the …

We study very high rate, spherically symmetric accretion flows on to massive black holes
(BHs; 102≲ M BH≲ 106 M⊙) embedded in dense metal-poor clouds, performing one …

We present chemical abundances derived from high-resolution Magellan/Magellan Inamori
Kyocera Echelle spectra of the nine brightest known red giant members of the ultra-faint …

Observations made using large ground-based and space-borne telescopes have probed
cosmic history from the present day to a time when the Universe was less than one-tenth of …